mirror of https://github.com/pret/pokecrystal.git
57 lines
1.5 KiB
Python
57 lines
1.5 KiB
Python
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Usage: python consts.py constants/some_constants.asm
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View numeric values of `const`ants.
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"""
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import sys
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import re
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const_value = 0
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const_inc = 1
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def asm_int(s):
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base = {'$': 16, '&': 8, '%': 2}.get(s[0], 10)
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return int(s if base == 10 else s[1:], base)
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def print_const(s, v):
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print(f'{s} == {v} == ${v:x}')
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def parse_for_constants(line):
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global const_value, const_inc
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if not (m := re.match(r'^\s+([A-Za-z_][A-Za-z0-9_@#]*)(?:\s+([^;\\n]+))?', line)):
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return
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macro, rest = m.groups()
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args = [arg.strip() for arg in rest.split(',')] if rest else []
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if args and not args[-1]:
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args = args[:-1]
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if macro == 'const_def':
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const_value = asm_int(args[0]) if len(args) >= 1 else 0
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const_inc = asm_int(args[1]) if len(args) >= 2 else 1
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elif macro == 'const':
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print_const(args[0], const_value)
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const_value += const_inc
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elif macro == 'shift_const':
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print_const(args[0], 1 << const_value)
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print_const(args[0] + '_F', const_value)
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const_value += const_inc
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elif macro == 'const_skip':
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const_value += const_inc * (asm_int(args[0]) if len(args) >= 1 else 1)
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elif macro == 'const_next':
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const_value = asm_int(args[0])
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def main():
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if len(sys.argv) < 2:
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print(f'Usage: {sys.argv[0]} constants/some_constants.asm', file=sys.stderr)
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sys.exit(1)
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for filename in sys.argv[1:]:
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with open(filename, 'r', encoding='utf-8') as file:
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for line in file:
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parse_for_constants(line)
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if __name__ == '__main__':
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main()
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